The German potable water supply industry is regarded highly fragmented, thus preventing efficiency improvements that … of 364 German water utilities in 2006, applying Data Envelopment Analysis, to analyze the potential efficiency gains from … hypothetical mergers between water utilities at the county level. A conditional efficiency framework is applied to account for the …

function with a timevariable stochastic efficiency term we show that positive scale and scope effects from a merger arise only … efficiency as the acquiring firms. For the post-merger phase, our empirical results provide no evidence for efficiency gains from …

This paper investigates the size-efficiency relation of European cooperative banks during the 2006-2015 period. We … cooperative banks from 12 European countries. This work extends the existing literature by focusing on shape of size-efficiency … European cooperative banks are significantly more cost efficient than their bigger peers and that the size-efficiency relation …

We analyze the stability of efficiency rankings of German universal banks between 1993 and 2004. First, we estimate … traditional efficiency scores with stochastic cost and alternative profit frontier analysis. Then, we explicitly allow for … different risk preferences and measure efficiency with a structural model based on utility maximization. Using the almost ideal …